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|
#!/usr/bin/env bash
# Summary: List installed Ruby versions
# Usage: rbenv versions [--bare] [--skip-aliases]
#
# Lists all Ruby versions found in `$RBENV_ROOT/versions/*'.
set -e
[ -n "$RBENV_DEBUG" ] && set -x
unset bare
unset skip_aliases
# Provide rbenv completions
for arg; do
case "$arg" in
--complete )
echo --bare
echo --skip-aliases
exit ;;
--bare ) bare=1 ;;
--skip-aliases ) skip_aliases=1 ;;
* )
rbenv-help --usage versions >&2
exit 1
;;
esac
done
canonicalize_dir() {
{ cd "$1" && pwd -P
} 2>/dev/null || echo "$1"
}
versions_dir="${RBENV_ROOT}/versions"
if [ -n "$skip_aliases" ]; then
versions_dir="$(canonicalize_dir "$versions_dir")"
fi
list_versions() {
local path
local target
shopt -s nullglob
for path in "$versions_dir"/*; do
if [ -d "$path" ]; then
if [ -n "$skip_aliases" ] && [ -L "$path" ]; then
target="$(canonicalize_dir "$path")"
[ "${target%/*}" != "$versions_dir" ] || continue
fi
echo "${path##*/}"
fi
done
shopt -u nullglob
}
if [ -n "$bare" ]; then
list_versions
exit 0
fi
sort_versions() {
sed 'h; s/[+-]/./g; s/.p\([[:digit:]]\)/.z.\1/; s/$/.z/; G; s/\n/ /' | \
LC_ALL=C sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n | awk '{print $2}'
}
versions="$(
if RBENV_VERSION=system rbenv-which ruby >/dev/null 2>&1; then
echo system
fi
list_versions | sort_versions
)"
if [ -z "$versions" ]; then
echo "Warning: no Ruby detected on the system" >&2
exit 1
fi
current_version="$(rbenv-version-name || true)"
while read -r version; do
if [ "$version" == "$current_version" ]; then
echo "* $(rbenv-version 2>/dev/null)"
else
echo " $version"
fi
done <<<"$versions"
|
